Expert boiler replacement with free estimates and financing across Nassau County.
New boilers starting at $5,000 installed with 10-year warranty and 0% financing available.
Is your boiler aging, inefficient, or requiring costly repairs? Our certified technicians provide expert boiler replacement throughout Nassau County. We handle gas, oil, steam, and hot water systems—including oil-to-gas conversions. From Levittown's post-war hydronic systems to Garden City's historic steam boilers, we size, install, and commission your new boiler for optimal performance and efficiency.
Boiler replacement in Nassau County requires specialized knowledge that goes beyond standard HVAC work. Many homes in Levittown, Garden City, and Floral Park still have original steam or hot water boilers from the 1940s-1960s. When these aging systems finally fail, the replacement involves careful consideration of your existing distribution system—steam radiators, hot water baseboard, or radiant floor heating—to ensure the new boiler integrates seamlessly. Our technicians are experienced with every boiler type found in Nassau County homes and can guide you through the decision between repair and replacement with honest, recommendations.
If your boiler shows any of these symptoms, it may be time to consider replacement
Cast-iron boilers last longer than furnaces, but efficiency drops sharply past 25 years
Spending $500+ per year on repairs — especially on circulator pumps or controls
Leaking sections or rust on the heat exchanger indicate structural failure
Old boilers lose efficiency — you're paying more for the same heat
Some radiators hot, others cold — the boiler can't maintain consistent output
A cracked heat exchanger or failed draft is a safety emergency
Your replacement boiler depends on your home's existing distribution system
Common in pre-war and mid-century Nassau County homes with cast-iron radiators
Homes with existing steam radiators in Garden City, Floral Park, Manhasset
Uses baseboard or radiant floor distribution — most popular replacement choice
Most homes — offers the widest range of efficiency options
Provides both space heating and instant domestic hot water in one compact unit
Smaller homes looking to free up space and eliminate water heater
See how your boiler's age affects your annual heating costs
| Boiler Age | Typical AFUE | Annual Waste | Recommendation |
|---|---|---|---|
| 5–15 years | 80–87% | $200–$400 | Monitor |
| 15–25 years | 70–80% | $400–$700 | Plan Ahead |
| 25–35 years | 60–70% | $700–$1,000 | Replace Soon |
| 35+ years | 50–60% | $1,000–$1,500+ | Replace Now |
Three tiers to match your budget, system type, and efficiency goals
Cast-Iron / Atmospheric
82–85% AFUE
From $5,000
Budget-conscious replacement for steam or hot water systems
Get Free EstimateCondensing Wall-Hung
95% AFUE
From $8,000
Most Nassau County homes — best value for long-term savings
Get Free EstimateCondensing Combi
95–98% AFUE
From $12,000
Smaller homes wanting to eliminate the water heater
Get Free EstimateAll installations include old boiler removal, permits, and 10-year warranty. Oil-to-gas conversions from $7,000. Financing from $89/mo →
Not sure if your boiler needs a repair or full replacement? Use this guide.
| Factor | Repair | Replace |
|---|---|---|
| Boiler Age | Under 20 years | Over 25 years |
| Repair Cost | Under 40% of new unit | Over 50% of new unit |
| AFUE Rating | Above 80% | Below 70% |
| Frequency | First major repair | 2+ repairs per season |
| Fuel Bills | Stable or slight rise | Rising 20%+ yearly |
| Leaks / Corrosion | Minor valve drip | Section or exchanger leak |
Still not sure? We'll give you an honest assessment — no pressure.
Get Expert Advice: (516) 259-1191Up to $2,000
Federal tax credit for qualifying high-efficiency boilers (95%+ AFUE)
Up to $1,000
Utility rebates for ENERGY STAR® certified boilers in Nassau County
Factory-trained technicians for all major HVAC manufacturers









Don't see your brand? We service all major manufacturers! Call us to confirm.
We evaluate your current boiler and heating needs
We recommend the best replacement boiler for your home
We remove the old boiler and install your new system
We test, calibrate, and ensure safe, efficient operation
"Our 1950s hydronic boiler finally gave out. Homets installed a Navien condensing unit and our heating bills dropped 35%. They understood our Levitt home perfectly."
"Replaced our aging steam boiler without disrupting the radiator system. Very knowledgeable about historic home heating. Highly recommend."
"Complete oil-to-gas conversion including boiler replacement. They handled everything—permits, gas line, tank removal. Professional from start to finish."
Professional boiler replacement in 30+ communities
5-min from our office
High-efficiency systems
Same-day service
Local HVAC experts
Same-day appointments
All brands serviced
Premium service
Fast local service
Fast local service
Quick response zone
All systems serviced
Residential specialists
Reliable HVAC service
Local experts
Historic home specialists
Post-war home experts
Affordable service
Reliable local service
All brands serviced
Same-day appointments
Fast response
Local HVAC service
Premium HVAC service
Premium service
Expert technicians
Fast local service
Residential service
Coastal HVAC service
North Shore service
North Shore experts
Local HVAC experts
Waterfront service
Free in-home estimates · 0% financing · 10-year warranty